The system needs your data... Finding out the day you're going die and how it will happen doesn’t sound like much of a birthday present to Rae. But it’s been that way for everyone since the cryptograph was introduced. A complex biological algorithm developed by award-winning scientists, the system can determine with precise accuracy the expiry date of every human being on the planet. Everyone is tested at sixteen, but Rae decides to opt out while she still can. Death is inevitable and despite what everyone thinks, when or how shouldn’t matter. It’s not right to label or categorize people according to their longevity - like Transients who have less than ten years left to live and are thus considered useless to society, Interims who are grudgingly tolerated, or Constants who are automatically considered elite. But when Rae’s intentions to avoid the test are impeded and she is determined Transient, she, aided by a hacker known as Apollo, sets out to thwart the cryptograph and prove to the world that the system is rigged.